TED-ED: Why are fish fish-shaped? - Lauren Sallan

The video explores the diverse motion mechanisms in fish, highlighting their evolutionary adaptations. Fish are categorized into two main groups based on their motion: body and caudal fin driven, and median and paired fin driven. The former group includes species like eels and tuna, which use their bodies and tails for propulsion. The latter group, including rays and reef fish, relies on fins for movement. The video also discusses outliers like seahorses and pufferfish, showcasing the evolutionary success of these adaptations across thousands of species.

What adaptations allow flying fish to glide for long distances?

How do the physical features of fish contribute to their survival in various habitats?

What are the two main groups of fish based on their motion, and how do they differ?

Describe the differences in swimming techniques between anguilliform and carangiform swimmers.

In what ways do bottom-dwelling fishes utilize their fins for movement?